Vehicle-Roadway Interaction Studies by Math Model

by Hayes E. Ross, Jr., Assoc. Res. Engr.; Texas Transp. Inst., Coll. Station, TX,
Don L. Ivey, Assoc. Res. Engr.; Texas Transp. Inst., Coll. Station, TX,

Serial Information: Transportation Engineering Journal of ASCE, 1972, Vol. 98, Issue 2, Pg. 285-298

Document Type: Journal Paper


The design and analysis of a safe roadway facility require a basic understanding of the vehicle-roadway interaction problem. In the past, the primary approach to the problem has been to investigate the effects of significant variables, on a single-factor-effect basis, with few attempts to study their interaction. Herein, is a description of a math model capable of predicting the dynamic behavior of an automobile as it interacts with various roadway features. Its potential is illustrated by several applications. Reviewed are studies concerned with sloping culvert grates, guardrail need criteria, guardrail location, earth slopes, side slope design, and friction requirements on curves. It is concluded that the math model can be a valuable tool for the research engineer and the highway engineer in their efforts to minimize hazardous roadway conditions.

Subject Headings: Highway and road design | Slopes | Vehicles | Mathematics | Mathematical models | Traffic safety | Highway and road conditions | Guardrails

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